1,1,1,2,2,3,3,4,4,5,5-undecamethylpentasilane | 79107-95-2

• 英文名称: 1,1,1,2,2,3,3,4,4,5,5-undecamethylpentasilane
• CAS: 79107-95-2
• 化学式: C₁₁H₃₄Si₅
• 分子量: 306.818
• InChiKey: KIDQSHZRGHQCLY-UHFFFAOYSA-N

物化性质

• 沸点：
  251.2±23.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.25
• 重原子数：
  16.0
• 可旋转键数：
  4.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  五甲基二硅烷 生成 1,1,1,2,2,3,3,4,4,5,5-undecamethylpentasilane
  参考文献：
  名称：

  五甲基乙硅烷和1 H-庚甲基三硅烷的热解

  摘要：

  DOI：

  10.1039/c29690000004

文献信息

• Synthesis, structure, and reactivity of hydridobis(silylene)ruthenium(IV)-xantsil complexes (xantsil = (9,9-dimethylxanthene-4,5-diyl)bis(dimethylsilyl)) — A stabilized form of key intermediates in the catalytic oligomerization–deoligomerization of hydrosilanes
  作者：Masaaki Okazaki、Jim Josephus Gabrillo Minglana、Nobukazu Yamahira、Hiromi Tobita、Hiroshi Ogino

  DOI：10.1139/v03-151

  日期：2003.11.1

  Ruκ²(Si,Si)-xantsil}(CO)(η⁶-C₆H₅CH₃) (1) was found to be a catalyst for oligomerization–deoligomerization of HSiMe₂SiMe₃ to give H(SiMe₂)_nMe (n = 1–8 at 90 °C for 2 days). Treatment of 1 with HSiMe₂SiMe₂OR (R = Me, t-Bu) led to quantitative formation of Ruκ³(O,Si,Si)-xantsil}(CO)(H)(SiMe₂•••O(R)•••SiMe₂)} (R = Me (2a), t-Bu (2b)), which also worked as a catalyst for oligomerization–deoligomerization of HSiMe₂SiMe₃. Based on these experimental results, a mechanism involving silyl(silylene) intermediates was proposed for the oligomerization–deoligomerization of HSiMe₂SiMe₃. Complex 2a reacted with MeOH in toluene-d₈ to give Ruκ²(Si,Si)-xantsil}(CO)(η⁶-toluene-d₈) and Me₂Si(OMe)₂ with evolution of H₂. Under a CO atmosphere, 2a was smoothly converted to its CO adduct Ruκ²(Si,Si)-xantsil}(CO)₂(H)(SiMe₂•••O(Me)•••SiMe₂)} (3).Key words: silylene complex, ruthenium, polysilane, dehydrogenative coupling, oligomerization.

  已发现 Ruκ²(Si,Si)-xantsil}(CO)(η⁶-C₆H₅CH₃) (1) 是 HSiMe₂SiMe₃ 的寡聚-去聚合催化剂，在90°C处理2天后生成 H(SiMe₂)_nMe (n = 1–8)。将1与HSiMe₂SiMe₂OR (R = Me, t-Bu) 反应，可定量生成 Ruκ³(O,Si,Si)-xantsil}(CO)(H)(SiMe₂•••O(R)•••SiMe₂)} (R = Me (2a), t-Bu (2b))，也可作为 HSiMe₂SiMe₃ 的寡聚-去聚合催化剂。基于这些实验结果，提出了涉及硅烷(硅烯)中间体的寡聚-去聚合机理。在甲苯-d₈中，2a 与 MeOH 反应生成 Ruκ²(Si,Si)-xantsil}(CO)(η⁶-甲苯-d₈) 和 Me₂Si(OMe)₂，伴随释放 H₂。在 CO 气氛下，2a 顺利转化为其 CO 加合物 Ruκ²(Si,Si)-xantsil}(CO)₂(H)(SiMe₂•••O(Me)•••SiMe₂)} (3)。关键词：硅烯配合物、钌、聚硅烷、脱氢偶联、寡聚合。

• Coordinatively Unsaturated Ru(II) Species Ru(xantsil)(CO): A New Active Catalyst for Oligomerization/Deoligomerization of HSiMe₂SiMe₃[xantsil=(9,9-Dimethylxanthene-4,5-diyl)bis(dimethylsilyl)]. Isolation of a Stabilized Form of the Silyl(silylene) Intermediates
  作者：Jim Josephus G. Minglana、Masaaki Okazaki、Hiromi Tobita、Hiroshi Ogino

  DOI：10.1246/cl.2002.406

  日期：2002.3

  Ru(xantsil)(CO)(η6-C6H5CH3) (1) was found to be a catalyst for the oligomerization/deoligomerization of HSiMe2SiMe3 to give H(SiMe2)nMe (n=1–8). A possible mechanism involving a silyl(silylene) intermediate was strongly supported by the isolation of its stabilized form, i.e., alkoxy-bridged bis(silylene) complex which was characterized by X-ray crystal structure analysis.

  Ru(xantsil)(CO)(η6-C6H5CH3) (1) 被发现是一种催化剂，用于 HSiMe2SiMe3 的低聚合/解聚反应，生成 H(SiMe2)nMe (n=1–8)。一种涉及硅烯（silylene）中间体的可能机制得到了强有力的支持，因为其稳定形式，即通过醇氧桥连的双（硅烯）络合物被分离出来，并通过X射线晶体结构分析进行了表征。
• Nefedov, O. M.; Skell, Philip S., Doklady Chemistry, 1981, vol. 259, p. 320 - 322
  作者：Nefedov, O. M.、Skell, Philip S.

  DOI：——

  日期：——